MLA

Alton, Jeannine, and Brian Jeffery. Bele Buche E Bele Parleure: A Guide to the Pronunciation of Medieval and Renaissance French for Singers and Others. London: Tecla, 1976.

APA

Alton, J., & Jeffery, B. (1976). Bele buche e bele parleure: A Guide to the Pronunciation of Medieval and Renaissance French for Singers and Others. London: Tecla.

Chicago

Alton, Jeannine, and Brian Jeffery. Bele Buche e Bele Parleure: A Guide to the Pronunciation of Medieval and Renaissance French for Singers and Others. London: Tecla, 1976.